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<head><meta charset="utf-8"><title>meeting 2020.06.02 · wg-async-foundations · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/index.html">wg-async-foundations</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html">meeting 2020.06.02</a></h3>

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<a name="199522335"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522335" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522335">(Jun 02 2020 at 17:01)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="1172">@WG-async-foundations</span> meeting!</p>



<a name="199522552"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522552" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522552">(Jun 02 2020 at 17:02)</a>:</h4>
<p>Just in general, is anyone blocked from making progress on something they're working on?</p>



<a name="199522582"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522582" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Nell Shamrell-Harrington <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522582">(Jun 02 2020 at 17:03)</a>:</h4>
<p>Nope!</p>



<a name="199522661"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522661" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522661">(Jun 02 2020 at 17:03)</a>:</h4>
<p>alright</p>



<a name="199522767"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522767" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522767">(Jun 02 2020 at 17:04)</a>:</h4>
<p>we can skip over most of the right side of the <a href="https://github.com/orgs/rust-lang/projects/2">project board</a>, I think</p>



<a name="199522794"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522794" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522794">(Jun 02 2020 at 17:04)</a>:</h4>
<p>but please update anything you see that's out of place</p>



<a name="199522878"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522878" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522878">(Jun 02 2020 at 17:05)</a>:</h4>
<p>in fact, let's jump straight to issue triage</p>



<a name="199522937"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199522937" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199522937">(Jun 02 2020 at 17:05)</a>:</h4>
<p><a href="https://github.com/search?q=org%3Arust-lang+is%3Aissue+label%3AA-async-await+is%3Aopen+-label%3AAsyncAwait-Triaged&amp;type=Issues">Uncategorized issues</a></p>



<a name="199523009"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523009" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523009">(Jun 02 2020 at 17:06)</a>:</h4>
<blockquote>
<p>Compiling simple (but long) code with lots of <code>async</code>/<code>await</code> takes hours <a href="https://github.com/rust-lang/rust/issues/72837">#72837</a></p>
</blockquote>



<a name="199523145"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523145" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523145">(Jun 02 2020 at 17:07)</a>:</h4>
<p>interesting</p>



<a name="199523152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523152">(Jun 02 2020 at 17:07)</a>:</h4>
<p><code>resolve_generator_interiors</code></p>



<a name="199523254"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523254" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523254">(Jun 02 2020 at 17:08)</a>:</h4>
<p>I guess that the comments summarize well -- there are probably just a lot of really big, really similar-but-not-the-same types</p>



<a name="199523258"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523258" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523258">(Jun 02 2020 at 17:08)</a>:</h4>
<p>..yeah, I can't think off the top of my head what can be improved, but hopefully there's some low hanging fruit here</p>



<a name="199523262"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523262" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523262">(Jun 02 2020 at 17:08)</a>:</h4>
<p>and we have to prove things like "is this send"</p>



<a name="199523380"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523380" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523380">(Jun 02 2020 at 17:09)</a>:</h4>
<p>okay well, I'm going to mark On Deck</p>



<a name="199523480"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523480" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523480">(Jun 02 2020 at 17:10)</a>:</h4>
<p>seems important to fix</p>



<a name="199523490"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523490" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523490">(Jun 02 2020 at 17:10)</a>:</h4>
<p>hmm</p>



<a name="199523507"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523507" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523507">(Jun 02 2020 at 17:10)</a>:</h4>
<p>yes :)</p>



<a name="199523573"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523573" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523573">(Jun 02 2020 at 17:10)</a>:</h4>
<blockquote>
<p>Impossible case reached: src/librustc_ty/needs_drop.rs:111 <a href="https://github.com/rust-lang/rust/issues/72685">#72685</a></p>
</blockquote>



<a name="199523664"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523664" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523664">(Jun 02 2020 at 17:11)</a>:</h4>
<p>looks like there is a PR open</p>



<a name="199523784"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523784" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523784">(Jun 02 2020 at 17:12)</a>:</h4>
<p>yep, PR looks reasonable</p>



<a name="199523786"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523786" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523786">(Jun 02 2020 at 17:12)</a>:</h4>
<p>marked in progress</p>



<a name="199523795"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199523795" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199523795">(Jun 02 2020 at 17:13)</a>:</h4>
<blockquote>
<p>ICE: Broken MIR <a href="https://github.com/rust-lang/rust/issues/72651">#72651</a></p>
</blockquote>



<a name="199524034"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524034" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524034">(Jun 02 2020 at 17:14)</a>:</h4>
<p>hmm</p>



<a name="199524048"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524048" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524048">(Jun 02 2020 at 17:14)</a>:</h4>
<p>I am guessing that this is due to overlooking pattern guards</p>



<a name="199524056"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524056" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524056">(Jun 02 2020 at 17:14)</a>:</h4>
<p>in the code that gathers up the "types we expect to see in a generator"</p>



<a name="199524059"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524059" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524059">(Jun 02 2020 at 17:14)</a>:</h4>
<p>this seems semi-serious</p>



<a name="199524082"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524082" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524082">(Jun 02 2020 at 17:15)</a>:</h4>
<p>yeah, I don't think awaiting in a match guard is something we've tested very heavily</p>



<a name="199524087"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524087" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524087">(Jun 02 2020 at 17:15)</a>:</h4>
<p>well, on the one hand, it's only an ICE</p>



<a name="199524107"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524107" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524107">(Jun 02 2020 at 17:15)</a>:</h4>
<p>on the other, it may be that sometimes we admit code</p>



<a name="199524128"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524128" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524128">(Jun 02 2020 at 17:15)</a>:</h4>
<p>i.e., if we've got an under-approximation of the types that may appear in the generator</p>



<a name="199524144"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524144" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524144">(Jun 02 2020 at 17:15)</a>:</h4>
<p>we could falsely conclude that the generator is Send</p>



<a name="199524159"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524159" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524159">(Jun 02 2020 at 17:15)</a>:</h4>
<p>I'm not sure if in all such cases we will also ICE later</p>



<a name="199524161"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524161" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524161">(Jun 02 2020 at 17:15)</a>:</h4>
<p>maybe...maybe not</p>



<a name="199524253"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524253" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524253">(Jun 02 2020 at 17:16)</a>:</h4>
<p>yeah, that would make it pretty serious indeed</p>



<a name="199524261"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524261" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524261">(Jun 02 2020 at 17:16)</a>:</h4>
<p>that said</p>



<a name="199524271"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524271" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524271">(Jun 02 2020 at 17:16)</a>:</h4>
<p>the MVCE doesn't ICE for me in play?</p>



<a name="199524351"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524351" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524351">(Jun 02 2020 at 17:17)</a>:</h4>
<p><a href="https://play.rust-lang.org/?version=nightly&amp;mode=release&amp;edition=2018&amp;gist=b8e20fe45658454316dbe25510144a55">playground</a></p>



<a name="199524352"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524352" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524352">(Jun 02 2020 at 17:17)</a>:</h4>
<p>huh, it only ICEs for me when requesting the MIR specifically</p>



<a name="199524402"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524402" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524402">(Jun 02 2020 at 17:17)</a>:</h4>
<p>not when actually building</p>



<a name="199524453"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524453" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524453">(Jun 02 2020 at 17:18)</a>:</h4>
<p>not sure what that means</p>



<a name="199524597"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524597" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524597">(Jun 02 2020 at 17:19)</a>:</h4>
<p>in any case, I've added it to On Deck</p>



<a name="199524630"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524630" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524630">(Jun 02 2020 at 17:19)</a>:</h4>
<p>..and now that list is growing quite large</p>



<a name="199524729"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524729" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524729">(Jun 02 2020 at 17:20)</a>:</h4>
<p>That was the last issue to triage, so maybe we can focus on how to burn down that list now</p>



<a name="199524797"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524797" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524797">(Jun 02 2020 at 17:21)</a>:</h4>
<p><span class="user-mention silent" data-user-id="116883">tmandry</span> <a href="#narrow/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02/near/199524352">said</a>:</p>
<blockquote>
<p>huh, it only ICEs for me when requesting the MIR specifically</p>
</blockquote>
<p>that's weird</p>



<a name="199524810"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524810" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524810">(Jun 02 2020 at 17:21)</a>:</h4>
<p>though it perhaps ups the concern level</p>



<a name="199524818"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524818" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524818">(Jun 02 2020 at 17:21)</a>:</h4>
<p>i.e., now we <em>know</em> the code is being accepted :)</p>



<a name="199524841"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524841" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524841">(Jun 02 2020 at 17:21)</a>:</h4>
<p>yeah I was thinking that too</p>



<a name="199524953"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524953" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524953">(Jun 02 2020 at 17:22)</a>:</h4>
<p>still, it's confusing</p>



<a name="199524992"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524992" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524992">(Jun 02 2020 at 17:22)</a>:</h4>
<p>yeah</p>



<a name="199524997"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199524997" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199524997">(Jun 02 2020 at 17:22)</a>:</h4>
<p>it bears some investigation</p>



<a name="199525076"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525076" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525076">(Jun 02 2020 at 17:23)</a>:</h4>
<p>okay, well</p>



<a name="199525109"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525109" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525109">(Jun 02 2020 at 17:24)</a>:</h4>
<p>it seems like we need to spend some time investigating issues and/or writing up mentoring instructions</p>



<a name="199525218"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525218" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525218">(Jun 02 2020 at 17:24)</a>:</h4>
<p>I have quite a busy week this week, but will see if I can spend some time on this later today</p>



<a name="199525309"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525309" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525309">(Jun 02 2020 at 17:25)</a>:</h4>
<p>Otherwise, I don't think there's anything else to discuss?</p>



<a name="199525449"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525449" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525449">(Jun 02 2020 at 17:26)</a>:</h4>
<p>in which case, we can end early for once :D</p>



<a name="199525500"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525500" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525500">(Jun 02 2020 at 17:26)</a>:</h4>
<p>Sounds like there isn't anything</p>



<a name="199525525"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525525" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525525">(Jun 02 2020 at 17:27)</a>:</h4>
<p>nothing on my end</p>



<a name="199525544"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525544" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525544">(Jun 02 2020 at 17:27)</a>:</h4>
<p>Thanks all for coming and enjoy your Tuesday <span aria-label="wave" class="emoji emoji-1f44b" role="img" title="wave">:wave:</span></p>



<a name="199525611"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/meeting%202020.06.02/near/199525611" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Yoshua Wuyts <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/meeting.202020.2E06.2E02.html#199525611">(Jun 02 2020 at 17:27)</a>:</h4>
<p>just pinged the libs team for a review on <code>core::ready!</code> macro, fingers crossed we can see progress there soonish <a href="https://github.com/rust-lang/rust/pull/70817">https://github.com/rust-lang/rust/pull/70817</a></p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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